2 * InspIRCd -- Internet Relay Chat Daemon
4 * Copyright (C) 2009-2010 Daniel De Graaf <danieldg@inspircd.org>
5 * Copyright (C) 2008 Dennis Friis <peavey@inspircd.org>
6 * Copyright (C) 2008 Robin Burchell <robin+git@viroteck.net>
7 * Copyright (C) 2008 Craig Edwards <craigedwards@brainbox.cc>
9 * This file is part of InspIRCd. InspIRCd is free software: you can
10 * redistribute it and/or modify it under the terms of the GNU General Public
11 * License as published by the Free Software Foundation, version 2.
13 * This program is distributed in the hope that it will be useful, but WITHOUT
14 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
15 * FOR A PARTICULAR PURPOSE. See the GNU General Public License for more
18 * You should have received a copy of the GNU General Public License
19 * along with this program. If not, see <http://www.gnu.org/licenses/>.
29 class WriteCommonQuit : public User::ForEachNeighborHandler
31 ClientProtocol::Messages::Quit quitmsg;
32 ClientProtocol::Event quitevent;
33 ClientProtocol::Messages::Quit operquitmsg;
34 ClientProtocol::Event operquitevent;
36 void Execute(LocalUser* user) CXX11_OVERRIDE
38 user->Send(user->IsOper() ? operquitevent : quitevent);
42 WriteCommonQuit(User* user, const std::string& msg, const std::string& opermsg)
44 , quitevent(ServerInstance->GetRFCEvents().quit, quitmsg)
45 , operquitmsg(user, opermsg)
46 , operquitevent(ServerInstance->GetRFCEvents().quit, operquitmsg)
48 user->ForEachNeighbor(*this, false);
53 UserManager::UserManager()
55 , unregistered_count(0)
59 UserManager::~UserManager()
61 for (user_hash::iterator i = clientlist.begin(); i != clientlist.end(); ++i)
67 void UserManager::AddUser(int socket, ListenSocket* via, irc::sockets::sockaddrs* client, irc::sockets::sockaddrs* server)
69 // User constructor allocates a new UUID for the user and inserts it into the uuidlist
70 LocalUser* const New = new LocalUser(socket, client, server);
71 UserIOHandler* eh = &New->eh;
73 ServerInstance->Logs->Log("USERS", LOG_DEBUG, "New user fd: %d", socket);
75 this->unregistered_count++;
76 this->clientlist[New->nick] = New;
78 this->local_users.push_front(New);
79 FOREACH_MOD(OnUserInit, (New));
81 if (!SocketEngine::AddFd(eh, FD_WANT_FAST_READ | FD_WANT_EDGE_WRITE))
83 ServerInstance->Logs->Log("USERS", LOG_DEBUG, "Internal error on new connection");
84 this->QuitUser(New, "Internal error handling connection");
88 // If this listener has an IO hook provider set then tell it about the connection
89 for (ListenSocket::IOHookProvList::iterator i = via->iohookprovs.begin(); i != via->iohookprovs.end(); ++i)
91 ListenSocket::IOHookProvRef& iohookprovref = *i;
95 iohookprovref->OnAccept(eh, client, server);
96 // IOHook could have encountered a fatal error, e.g. if the TLS ClientHello was already in the queue and there was no common TLS version
97 if (!eh->getError().empty())
99 QuitUser(New, eh->getError());
104 if (this->local_users.size() > ServerInstance->Config->SoftLimit)
106 ServerInstance->SNO->WriteToSnoMask('a', "Warning: softlimit value has been reached: %d clients", ServerInstance->Config->SoftLimit);
107 this->QuitUser(New,"No more connections allowed");
111 // First class check. We do this again in LocalUser::FullConnect() after DNS is done, and NICK/USER is received.
113 // If the user doesn't have an acceptable connect class CheckClass() quits them
114 New->CheckClass(ServerInstance->Config->CCOnConnect);
119 * even with bancache, we still have to keep User::exempt current.
120 * besides that, if we get a positive bancache hit, we still won't fuck
121 * them over if they are exempt. -- w00t
123 New->exempt = (ServerInstance->XLines->MatchesLine("E",New) != NULL);
125 BanCacheHit* const b = ServerInstance->BanCache.GetHit(New->GetIPString());
128 if (!b->Type.empty() && !New->exempt)
131 ServerInstance->Logs->Log("BANCACHE", LOG_DEBUG, "BanCache: Positive hit for " + New->GetIPString());
132 if (!ServerInstance->Config->XLineMessage.empty())
133 New->WriteNumeric(ERR_YOUREBANNEDCREEP, ServerInstance->Config->XLineMessage);
135 if (ServerInstance->Config->HideBans)
136 this->QuitUser(New, b->Type + "-lined", &b->Reason);
138 this->QuitUser(New, b->Reason);
143 ServerInstance->Logs->Log("BANCACHE", LOG_DEBUG, "BanCache: Negative hit for " + New->GetIPString());
150 XLine* r = ServerInstance->XLines->MatchesLine("Z",New);
160 if (ServerInstance->Config->RawLog)
161 New->WriteNotice("*** Raw I/O logging is enabled on this server. All messages, passwords, and commands are being recorded.");
163 FOREACH_MOD(OnSetUserIP, (New));
168 void UserManager::QuitUser(User* user, const std::string& quitreason, const std::string* operreason)
172 ServerInstance->Logs->Log("USERS", LOG_DEFAULT, "ERROR: Tried to quit quitting user: " + user->nick);
178 ServerInstance->Logs->Log("USERS", LOG_DEFAULT, "ERROR: Tried to quit server user: " + user->nick);
182 user->quitting = true;
184 ServerInstance->Logs->Log("USERS", LOG_DEBUG, "QuitUser: %s=%s '%s'", user->uuid.c_str(), user->nick.c_str(), quitreason.c_str());
185 LocalUser* const localuser = IS_LOCAL(user);
188 ClientProtocol::Messages::Error errormsg(InspIRCd::Format("Closing link: (%s@%s) [%s]", user->ident.c_str(), user->GetRealHost().c_str(), operreason ? operreason->c_str() : quitreason.c_str()));
189 localuser->Send(ServerInstance->GetRFCEvents().error, errormsg);
193 reason.assign(quitreason, 0, ServerInstance->Config->Limits.MaxQuit);
195 operreason = &reason;
197 ServerInstance->GlobalCulls.AddItem(user);
199 if (user->registered == REG_ALL)
201 FOREACH_MOD(OnUserQuit, (user, reason, *operreason));
202 WriteCommonQuit(user, reason, *operreason);
205 unregistered_count--;
209 LocalUser* lu = IS_LOCAL(user);
210 FOREACH_MOD(OnUserDisconnect, (lu));
213 if (lu->registered == REG_ALL)
214 ServerInstance->SNO->WriteToSnoMask('q',"Client exiting: %s (%s) [%s]", user->GetFullRealHost().c_str(), user->GetIPString().c_str(), operreason->c_str());
215 local_users.erase(lu);
218 if (!clientlist.erase(user->nick))
219 ServerInstance->Logs->Log("USERS", LOG_DEFAULT, "ERROR: Nick not found in clientlist, cannot remove: " + user->nick);
221 uuidlist.erase(user->uuid);
222 user->PurgeEmptyChannels();
226 void UserManager::AddClone(User* user)
228 CloneCounts& counts = clonemap[user->GetCIDRMask()];
234 void UserManager::RemoveCloneCounts(User *user)
236 CloneMap::iterator it = clonemap.find(user->GetCIDRMask());
237 if (it != clonemap.end())
239 CloneCounts& counts = it->second;
241 if (counts.global == 0)
243 // No more users from this IP, remove entry from the map
253 void UserManager::RehashCloneCounts()
257 const user_hash& hash = ServerInstance->Users.GetUsers();
258 for (user_hash::const_iterator i = hash.begin(); i != hash.end(); ++i)
265 const UserManager::CloneCounts& UserManager::GetCloneCounts(User* user) const
267 CloneMap::const_iterator it = clonemap.find(user->GetCIDRMask());
268 if (it != clonemap.end())
271 return zeroclonecounts;
274 void UserManager::ServerNoticeAll(const char* text, ...)
277 VAFORMAT(message, text, text);
278 ClientProtocol::Messages::Privmsg msg(ClientProtocol::Messages::Privmsg::nocopy, ServerInstance->FakeClient, ServerInstance->Config->ServerName, message, MSG_NOTICE);
279 ClientProtocol::Event msgevent(ServerInstance->GetRFCEvents().privmsg, msg);
281 for (LocalList::const_iterator i = local_users.begin(); i != local_users.end(); ++i)
283 LocalUser* user = *i;
284 user->Send(msgevent);
288 /* this returns true when all modules are satisfied that the user should be allowed onto the irc server
289 * (until this returns true, a user will block in the waiting state, waiting to connect up to the
290 * registration timeout maximum seconds)
292 bool UserManager::AllModulesReportReady(LocalUser* user)
295 FIRST_MOD_RESULT(OnCheckReady, res, (user));
296 return (res == MOD_RES_PASSTHRU);
300 * This function is called once a second from the mainloop.
301 * It is intended to do background checking on all the users, e.g. do
302 * ping checks, registration timeouts, etc.
304 void UserManager::DoBackgroundUserStuff()
306 for (LocalList::iterator i = local_users.begin(); i != local_users.end(); )
308 // It's possible that we quit the user below due to ping timeout etc. and QuitUser() removes it from the list
309 LocalUser* curr = *i;
312 if (curr->CommandFloodPenalty || curr->eh.getSendQSize())
314 unsigned int rate = curr->MyClass->GetCommandRate();
315 if (curr->CommandFloodPenalty > rate)
316 curr->CommandFloodPenalty -= rate;
318 curr->CommandFloodPenalty = 0;
319 curr->eh.OnDataReady();
322 switch (curr->registered)
325 if (ServerInstance->Time() >= curr->nping)
327 // This user didn't answer the last ping, remove them
330 time_t time = ServerInstance->Time() - (curr->nping - curr->MyClass->GetPingTime());
331 const std::string message = "Ping timeout: " + ConvToStr(time) + (time != 1 ? " seconds" : " second");
332 this->QuitUser(curr, message);
335 ClientProtocol::Messages::Ping ping;
336 curr->Send(ServerInstance->GetRFCEvents().ping, ping);
338 curr->nping = ServerInstance->Time() + curr->MyClass->GetPingTime();
342 if (AllModulesReportReady(curr))
344 /* User has sent NICK/USER, modules are okay, DNS finished. */
349 // If the user has been quit in OnCheckReady then we shouldn't
350 // quit them again for having a registration timeout.
356 if (curr->registered != REG_ALL && curr->MyClass && (ServerInstance->Time() > (curr->signon + curr->MyClass->GetRegTimeout())))
359 * registration timeout -- didnt send USER/NICK/HOST
360 * in the time specified in their connection class.
362 this->QuitUser(curr, "Registration timeout");
368 already_sent_t UserManager::NextAlreadySentId()
370 if (++already_sent_id == 0)
372 // Wrapped around, reset the already_sent ids of all users
374 for (LocalList::iterator i = local_users.begin(); i != local_users.end(); ++i)
376 LocalUser* user = *i;
377 user->already_sent = 0;
380 return already_sent_id;